IRS Practice & Procedure .

Harry had $40,000 withheld in 20x0. Because of large itemized deductions, he figured that he had no further tax to pay for the year. For this reason, and because of personal problems, and without securing an extension, he did not file his 20x0 return until July 1, 20x1. The return showed a refund of $2,400, which Harry ultimately received. On May 10, 20x4, Harry filed a $16,000 claim for refund of his 20x0 taxes.

a. How much, if any, of the $16,000 may Harry recover?

b. Would it have made any difference if Harry had requested and secured from the IRS an extension of time for filing his 20x0 tax return?